Bukkit

What is the enhancement in mind? How should it look and feel?

Set a number in the config file that will be the number of Spawn eggs you must have in your inventory in order to change the mob spawner. Since spawn eggs are now stackable, this would be really nice.

If I set the number to say 32, then I would need 32 of whatever spawn egg in order to change the mob spawner. This would hopefully be compatible with using eggs for a price.

Please provide any additional information below.

Have not tried this out yet, but the spawn eggs disappear upon changing the mob spawner right? If they don't then I'd think that would be something that should be toggled.

yes, the eggs do disappear upon changing the mob spawner.